Putting def definitions in place.

src/GF/Source/AbsGF.hs

@@ -2,12 +2,10 @@ module AbsGF where
 
 import Ident --H
 
--- Haskell module generated by the BNF converter, except for --H
+-- Haskell module generated by the BNF converter, except --H
 
 -- newtype Ident = Ident String deriving (Eq,Ord,Show) --H
-
 newtype LString = LString String deriving (Eq,Ord,Show)
-
 data Grammar =
    Gr [ModDef]
   deriving (Eq,Ord,Show)
@@ -66,7 +64,7 @@ data TopDef =
    DefCat [CatDef]
  | DefFun [FunDef]
  | DefDef [Def]
- | DefData [ParDef]
+ | DefData [DataDef]
  | DefTrans [FlagDef]
  | DefPar [ParDef]
  | DefOper [Def]
@@ -89,6 +87,15 @@ data FunDef =
    FunDef [Ident] Exp
   deriving (Eq,Ord,Show)
 
+data DataDef =
+   DataDef Ident [DataConstr]
+  deriving (Eq,Ord,Show)
+
+data DataConstr =
+   DataId Ident
+ | DataQId Ident Ident
+  deriving (Eq,Ord,Show)
+
 data ParDef =
    ParDef Ident [ParConstr]
  | ParDefIndir Ident Ident